Log Message:
p5-autobox: update to 2.86.

2.86 Fri 20 Apr 20:07:29 2018

    - GH #9: fix bug which prevented autoboxing working
      under the debugger on perl 5.22+ (thanks, skington)
        - added t/debugger.t
    - GH #8: fix bug which prevented bareword method-calls being
      exempted when the method is a variable e.g. Foo->$bar
    - add operator-overloading note to the gotchas section (GH #7)